19661356

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{929}}^1$

素因数の和:994

約数の個数: 48

約数和(自身を含む): 41559840

約数和(自身を除く): 21898484

約数列:

[1, 2, 4, 11, 13, 22, 26, 37, 44, 52, 74, 143, 148, 286, 407, 481, 572, 814, 929, 962, 1628, 1858, 1924, 3716, 5291, 10219, 10582, 12077, 20438, 21164, 24154, 34373, 40876, 48308, 68746, 132847, 137492, 265694, 378103, 446849, 531388, 756206, 893698, 1512412, 1787396, 4915339, 9830678, 19661356]

約数ペア:

[(1, 19661356), (2, 9830678), (4, 4915339), (11, 1787396), (13, 1512412), (22, 893698), (26, 756206), (37, 531388), (44, 446849), (52, 378103), (74, 265694), (143, 137492), (148, 132847), (286, 68746), (407, 48308), (481, 40876), (572, 34373), (814, 24154), (929, 21164), (962, 20438), (1628, 12077), (1858, 10582), (1924, 10219), (3716, 5291)]